The Why? Why? Why? collection for children aged 2–4 has a new addition: Let’s Collect the Rubbish. This book reveals the mysteries of how the waste we produce is transported and disposed of. Young readers learn how rubbish is created, who is responsible for transporting it, where it is taken, what kinds of vehicles sanitation workers use, how waste collection vehicles work, and why it is important to sort our rubbish.

Like all the other books in the collection, Let’s Collect the Rubbish features sturdy, richly illustrated pages with lots of informative lift-the-flap windows.